FLASHBACK™ TAILLIGHT
FLASHER
CAUTION
Some vehicle manufacturers may not allow
the use of this product on vehicles they
manufacture. Please consult your operator’s
manual prior to installation. Also, make sure
you fully read and understand all instructions
before attempting to install the Flashback
Flasher.
ETFBØØ-P (with wires)
ETFBFLEE (with Amp Connector and Fleet Harness)
+12Vdc
The SoundOff Signal Solid State driven relay
model ETFBØØ-P 12 wire Flashback module
now has the isolating diodes for the reverse
wire that is now required by many new cars
and trucks. This module is intended to be
used on vehicles that have the negative post
of the battery connected to the chassis of
the vehicle.
‘OPTIONAL’
20 AMP
FUSE
BROWN
DRIVER SIDE BRAKE/TAIL WIRE
DRIVER SIDE REVERSE WIRE
PASSENGER SIDE
REVERSE WIRE
BLACK
RED
PASSENGER SIDE
BRAKE/TAIL WIRE
CUT
12 WIRE
ETFB00-P
WHITE
CUT
WHT/RED
WHT/BLK
FLASHBACK
MODULE
RED/BLACK
PINK
ORANGE
FLASHBACK
CUT
15 AMP
FUSE
FLASHER
ON/OFF
SWITCH
SINGLE POLE /
SINGLE THROW
(S.P.S.T.) RELAY
1N400x
DIODE
CUT
BLUE
YELLOW
RED/BLACK
PACKAGE
TRAY
LIGHTS
GREEN
BRAKE/TAIL
WIRE
'OPTIONAL'
REVERSE
WIRE
BRAKE/TAIL LIGHT
REVERSE
LIGHT
DRIVER SIDE
REVERSE
WIRE
INSTALLATION
MOUNTING: For vehicles with a trunk,
mount the Flashback as close to the driver
side taillight housing as possible. For vehicles with a tailgate or lift gate, mount the
flasher as close to the taillight housing on
the driver side. For pickup trucks, remove
the driver side taillight housing and mount
the flasher behind the taillight housing.
BRAKE/TAIL
WIRE
REVERSE
LIGHT
A properly installed flashback will alternately
flash the brake lights and the reverse lights
at a rate of 2.4 flashes per second. Alternating red and white light creates an effective
warning signal to the rear of the vehicle to
greatly reduce rear end collisions.
BRAKE/TAIL LIGHT
PASSENGER SIDE
CONNECTIONS: Connect the green wire to
a convenient reliable ground.
NOTE: FOR VEHICLES THAT REQUIRE
BLOCKING DIODES IN THE REVERSE WIRE.
USE OF THE ETFB00-P (12 WIRE) FLASHBACK
PROVIDES THE BLOCKING DIODES
INTERNALLY.
Please see reverse for
Technical Specifications
Important Information:
• Warning devices are strictly regulated and governed by Federal, State and Municipal ordinances.
These devices shall be used ONLY on approved vehicles. It is the sole responsibility of the user of these
devices to ensure compliance.
• DO NOT install this product or route any wires in the Air Bag Deployment Zone. Refer to your vehicle
Owner’s Manual for the location of any air bag deployment zones.
• DO NOT connect this device to a strobe power supply. This product is self-contained and does not
require an external power supply.
Extend the White wire from the module
using 14 gauge wire. This wire will be
connected to the switch that will turn the
flasher on and off. The switch must be rated
at 20 amps or greater. The switch needs to
be connected to the power source through a
20 amp fuse. The fuse holder must be rated
at 20 amps or greater.
Driver Side Connections:
Locate and cut the brake light wire. Connect
the BLUE wire from the flasher to the end
that goes to the brake light. Connect the
ORANGE wire from the flasher to the end
that goes to the front of the vehicle.
Locate and cut the reverse light wire. Connect the WHITE/RED wire from the flasher
to the end that goes to the reverse light.
Connect the RED wire from the flasher to the
end that goes to the front of the vehicle.
Passenger Side Connections:
Extend the YELLOW, PINK, WHITE/BLACK
and BLACK wire over to the passenger side
of the vehicle.
Locate and cut the brake light wire. Connect
the YELLOW wire from the flasher to the
end that goes to the brake light. Connect the
PINK wire from the flasher to the end that
goes to the front of the vehicle.
Locate and cut the reverse light wire. Connect the WHITE/BLACK wire from the flasher
to the end that goes to the reverse light.
Connect the BLACK wire from the flasher to
the end that goes to the front of the vehicle.
BROWN WIRE (OPTIONAL): Connect to
deck lights to flash at the same time as the
backup lights. Use of this option is preferred
by many departments across the U.S.,
although use of this circuit may reduce the
life of the flashback.
RED / BLACK: See schematic at left.
NOTE: DO NOT INSTALL THE FUSE UNTIL
ALL OTHER CONNECTIONS HAVE BEEN
COMPLETED.
Use 18 gauge or larger wire to extend any
other wires as needed.
To review our Limited Warranty Statement & Return Policy for this or any SoundOff Signal product please visit our website at www.soundoffsignal.com and select the “Warranty & Returns”
link along the left column of our home page. If you have questions regarding this product please contact Technical Services, Monday - Friday, 8 am to 5 pm at 1.800.338.7337, press #4 to
skip the automated message. Questions or comments that do not require immediate attention may be emailed to techsupport@soundoffsignal.com.
1.800.338.7337. / www.soundoffsignal.com / Thank you for trusting us with your safety!
ETFB00 4.10
FLASHBACK™ TAILLIGHT
FLASHER
TECHNICAL SPECIFICATIONS
Overall Dimensions:
Flash Frequency:
ETFBØØ-P (with wires)
ETFBFLEE (with amp connector and fleet harness)
Input Voltage:
Output Current:
2.16”H x 2.77”W x 3.22”D
2.4 flashes per second
10-16Vdc
5 Amps/Output
IMPORTANT
WARNING
Test Vehicle Safety Systems and Flasher
DO NOT connect the Flashback™ Taillight Flasher to the High Mounted
Stop Lamp (i.e. “Cyclops, “Center Light”, “CHMSL”). Flashing the High
Mounted Stop Lamp violates Federal Motor Vehicle Safety Standard
(FMVSS) No. 108 which requires the High Mounted Stop Lamp ONLY
illuminate when applying the brakes.
1. Set emergency / parking brake and start vehicle.
2. With Flasher OFF, attempt to shift transmission out of PARK
without depressing the brake. TRANSMISSION MUST NOT
SHIFT. If vehicle shifts from Park, disconnect the flasher, restore
vehicle wiring and contact SoundOff Signal Technical Department
for further instructions.
NOTE
On certain vehicles, when both the flashback and turn signals are
operated together, the front signal may flash at a nonuniform rate. This
condition causes no damage to either the vehicle or the flasher.
3. With Flasher ON, attempt to shift transmission out of PARK
without depressing the brake. TRANSMISSION MUST NOT
SHIFT. If vehicle shifts from Park, disconnect the flasher, restore
vehicle wiring and contact SoundOff Signal Technical Department
for further instructions.
4. Periodically have the operator of the vehicle repeat the above
test to ensure proper operation of vehicle safety systems.
ETFB00 4.10